/**
 *
 */
package org.cmcc.xdr.parse;

import java.util.ArrayList;
import java.util.Date;
import java.util.Iterator;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import org.cmcc.pcap.jpcap.tcp.TcpConnection;
import org.cmcc.pcap.jpcap.tcp.TcpPacketDecorator;
import org.cmcc.pcap.jpcap.tcp.TcpProtocolHandler;
import org.cmcc.pcap.jpcap.tcp.http.HttpTransaction;
import com.cmcc.xdr.db.PcapTcpDao;
//import com.cmcc.packet.tcp.tcp.xdr.TcpXdrGenerate;
import com.cmcc.xdr.pcapparse.tcp.TcpXdrGenerate;

/**
 * @Date 2018年3月21日 上午10:06:33
 * @author Amish
 *
 */
public class TcpHandler extends TcpProtocolHandler{
//	@Autowired
//	private  HttpTransactionDao httpTransactionDao;
	private static Logger logger = LogManager.getLogger(TcpHandler.class);
	private TcpXdrGenerate txg;
	public TcpHandler() {
		txg =  new TcpXdrGenerate();
	}
	
	@Override
	public void handle(TcpConnection tcpConnection,String taskId) {
		
		logger.debug("start execute tcp packet handler");
		
		logger.debug(new Date(tcpConnection.lastPacketTime));//最后一个packet的处理时间(注:非抓包时间)
		long pcapTimestamp  = tcpConnection.al.get(tcpConnection.al.size()-1).tcpPacket.sec * 1000;//pcap的timestamp的单位是秒，这里需要转成毫秒
		logger.debug(new Date(pcapTimestamp));//最后一个packet的抓包时间
		
		
		/**
		 * Connection 内TCP 分段(segment)处理：乱序重组、重传清洗、TODO 默认保留前2个分段且可配？
		 */
/*		
		logger.debug("start tcp connection deal");
		tcpConnection.tcpConnectionPacketsDeal();//duplicate ack merge、retransmission and spurious retransmission merge、segments reassemble
		logger.debug("stop tcp connection deal");
		
		logger.debug("this connection <"+tcpConnection.connectionKey+"> hava packets (initial)  : "+tcpConnection.packetsNumInitial);
		logger.debug("this connection <"+tcpConnection.connectionKey+"> hava packets (after duplicate ack merge)  : "+tcpConnection.packetsNumAfterDuplicateAckMerge);
		logger.debug("this connection <"+tcpConnection.connectionKey+"> hava packets (after retransmission merge)  : "+tcpConnection.packetsNumAfterRetransmissionMerge);
		logger.debug("this connection <"+tcpConnection.connectionKey+"> hava packets (after reorder packets)  : "+tcpConnection.packetsNumAfterReorderTcpPacket);
		logger.debug("this connection <"+tcpConnection.connectionKey+"> hava packets (after reassemble) : "+tcpConnection.packetsNumAfterReassemble);
*/
		
//		for(TcpPacketDecorator tpd : tcpConnection.al){
//			logger.error("-----------------------------------");
//			logger.error(new String(tpd.getData()));
//			logger.error("-----------------------------------");
//		}
//		for(TcpPacketDecorator tpd : tcpConnection.retransmissionMergeAl){
//			logger.error("++++++++++++++++++++++++++++++++++++");
//			logger.error(new String(tpd.getData()));
//			logger.error("++++++++++++++++++++++++++++++++++++");
//		}
//		for(TcpPacketDecorator tpd : tcpConnection.reassembleAl){
//			logger.error("====================================");
//			logger.error(new String(tpd.getData()));
//			logger.error("====================================");
//		}
		
		
		/**
		 * TODO HTTP事务识别：按HTTP事务重新对TcpConnection进行划分成多个TcpConnection
		 * 握手信息放在第一个HTTP事务中
		 * 拆链信息放在最后一个HTTP事务中
		 */
		txg.generate(tcpConnection);
		logger.debug("this connection <"+tcpConnection.connectionKey+"> save into tcp packet entity !");
	
		PcapTcpDao.save(txg.tcpEntityList, taskId);
		txg.tcpEntityList.clear();
		logger.debug("this connection <"+tcpConnection.connectionKey+"> saved into database !");
		
		
		
	}

}
